Stopper plug



0. FITTERER Feb. 21, 1933.

STOPPER PLUG Filed May 21, 1932 Bummer Orra firrzzfz By I Gttomeg Patented Feb. 21, 1933 UNITED STATES OTTO FITTERER, OF MILWAUKEE, WISCONSIN STOPPER PLUG Application filed May 21,

The invention relates to improvements in stopper plugs and particularly to a novel tapered plug having a rubber sheath on the outside thereof to provide a secure retention in a receptacle.

It is one of the prime objects of the present invention to provide a novel stopper plug which is simple to manufacture and is adapted to be made of inexpensive material, and having a rubber sheath around the same.

Another object of the invention resides in the provisionof an improved stopper for cans having a metallic core, closed at its lower end and fixedly secured within the rubber sheath.

A further object of the invention is to provide a novel stopper for cans having a cross bar diametrically fixed in the same adapted adjacent its top to serve as a handle in carrying the entire can in which said plug is inserted.

A still further object of the invention is to provide a novel stopper for cans having an annular flange outwardly disposed of its lower end, with the rubber sheath, at its lower end overlapping the flanged to present a metal surface to the contents of the receptacle.

The foregoing and such other objects of the invention, as will appear hereinafter as the description proceeds, will be more readily understood from a perusal of the following specification, reference being had to the accompanying drawing, in which:

Fig. 1 is an elevational view partly in section of a can and stopper embodying my invention.

Fig. 2 is a perspective view of the stopper.

Fig. 3 is a fragmentary view similar to Fig. 1 on an enlarged scale.

Stopper plugs used to seal cans are usually made of cork and are frequently broken or chipped in being removed from the cans. Then too, cork plugs do not seal the cans airtight. In being removed from the cans, chips of the cork often drop into the contents of the cans.

The present form of stopper plug is provided with an outer rubber sheath and a 1932. Serial No. 612,667.

metallic core, securely fixed therein, theirubber sheath being shorter in length than the metallic core. The rubber sheath is ar ranged so as to have its lower end abutting said flange and overlapping it to form a seat for said lower end and to present to the contents of the can, a metallic surface. The present stopper hereinprovided may be used, indefinitely without destruction, and without contact 'with'the contents of the can. Referring to the drawing in detail, there is provided a tapered rubber sheath 4, preferably made of rubber, having open ends, molded around and having provided securely fixed therein, a metallic core 5, made of brass or the like. This metallic core 5, has tapered walls parallel to the walls of therubber sheath 4. The top 6, of the metallic core 5, is on a coplane with the top 7, of the rubber sheath 4. The rubber sheath tapers downwardly to a point 8 contiguous to and above the base of the metallic core 5.

The metallic core 5, is provided with an integrally closed bottom 9, which is the only 7 surface presented to the contents of the can when sealed by the plug. Outwardly of the rubber sheath 4, at its lower end 10, there is provided an annular flange 11, in

the vertical neck of the can, said neck being integral with the can or adapted to be secured therein in any known fashion. This annular flange 11, is disposed perpendicularly to the axis of the metallic core 5, and is adapted to seat the lower end 10 of the rubber sheath 4, to form a retaining means for the entire plug and to present to the contents of the can the surface only of the bottom 9, or" the metallic core.

For convenience in carrying the can when 90. sealed with my plug, I provide a cross bar handle 12, diametrically secured to the inside walls of the metallic core 5, adjacent the top 6 of such core.

The plug is ordinarily inserted in the can so as to extend slightly above the top of the rolled edge 13, of the same.

It can be understood that the stopper plug, constructed in the foregoing manner, in inexpensive to manufacture and can be made 00 of various materials, although it is preferable to use a rubber sheath.

Although a preferred embodiment of the invention has been illustrated and described, it is to be readily understood that it is capable of embodying various modifications in the detail structure without departing from the spirit of the invention or the scope of the appended claim.

I claim:

A stopper plug comprising a hollow tapered core, closed at its lower and smaller end, a cross bar diametrically fixed in said core adjacent its upper end, an annular flange outwardly disposed of said lower end and perpendicular to the axis of said core, and a rubber sheath moulded on said core flush with the upper end thereof and abutting said flange with its lower end and overlapping the same so as to form a retaining means for said plug when it is placed in the mouth of a receptacle for the purpose of sealing the same.

In testimony whereof I afiix my signature at 161 West \Visconsin Avenue, Milwaukee, Wisconsin.

OTTO FITTERER. 

